The Young Bulls approach: add the role, then validate the skills

In-season hitter pickups are rarely about finding a “new star” in one click—they’re about catching playing time before the room notices. With first-year MLB position players and fresh call-ups, the edge is identifying which bats have a path to steady at-bats (and lineup leverage) and which are just filling a few games.

My filter is simple: (1) role signal (how often they’re in the lineup, where they hit, and whether projections are moving), then (2) skills signal (plate discipline indicators, contact quality trends if you have them, and whether the production is coming with sustainable inputs). If you don’t have Statcast/contact-quality data in your league tools, you can still win by being first on the role change.

Lead example #1: JJ Bleday — when roster rate lags the new lineup reality

JJ Bleday (Cincinnati OF) is a clean example of how quickly availability can evaporate once a team commits to a recalled bat. He was called up from Triple-A Louisville on 2026-04-25. FantasyData/RotoBaller reported he was rostered in 27% of Yahoo leagues after producing 17-for-53 (.321) with 6 HR, 18 RBI, 10 R, 1 SB, 13 BB, and 10 K across 66 PA with Cincinnati—plus a surge highlighted by going 7-for-13 with 11 RBI across his previous four games (as of the supplied snapshot).

FantasyData’s last-10-game table backed up both performance and approach: 38 AB with a .368/.478/.763 slash, 3 HR, 15 RBI, 8 BB, and 6 K. That’s the kind of combo (playing time + results + walks) that turns a “watch list” player into a proactive add in anything but the shallowest formats.

The market signal also mattered: a Sports Illustrated Week 7 waiver note had Bleday at 12% Yahoo ownership earlier, alongside a note that he’d extended a hitting streak to six games. Put those together and you get the actionable takeaway—when ownership is climbing quickly, you need to decide whether you’re paying for a mirage or paying for a role. FanGraphs’ 2026-05-12 playing-time changes moving Bleday from 41% to 53% projected remaining playing time is exactly the kind of role confirmation that justifies getting ahead of the next waiver run.

Lead example #2: Braden Shewmake — a hot streak with a ticking roster-clock

Braden Shewmake (Houston SS/2B/3B) shows the other side of the waiver equation: strong immediate production, but with a clearer depth-chart risk you must plan around. He was selected to the Astros’ major-league roster on 2026-04-20. Through 2026-05-15, Baseball Almanac’s game log showed 15 games and 41 AB with a .366/.366/.610 slash, 3 HR, and 7 RBI—plus hits in nine straight games with at-bats from 2026-05-05 through 2026-05-15.

FantasyData’s recent lines reinforced the heater (and the usage): a season table listing 14 games, 37 AB, and a .378/.368/.649 slash, and a last-10 line of 27 AB with a .444/.444/.704 slash and 2 HR. CBS Sports also pegged his availability as real (3% rostered, 2% started) while noting he was seeing shortstop time versus right-handed pitching—but could lose depth-chart room when Jeremy Peña returns.

The process call: when you add this profile, you’re not just betting on the bat; you’re buying a temporary block of at-bats. FanGraphs’ 2026-05-12 playing-time changes moving Shewmake from 6% to 18% projected remaining playing time (due to Carlos Correa’s injury) is the key context. In weekly leagues, he’s a classic “ride it now, schedule the exit” add—use the at-bats while they’re bankable, and pre-commit to a re-evaluation once the roster squeeze returns.

Other first-year and newly promoted bats to run through the same filter

Travis Bazzana (Cleveland 2B) belongs in the same conversation because the category shape is already useful even while the batting average is still settling. MLB.com lists his 2026 line at 50 AB, 8 R, 12 H, 1 HR, 7 RBI, 7 SB, a .240 average, .406 OBP, and .726 OPS, with a last-seven-game split of .292/.433/.458 and three steals. Fantasy Alarm had him at 35% rostered on Yahoo on May 10 and flagged the same early speed spike: seven steals in his first 10 games.

Samuel Basallo (Baltimore C/1B) is a different type of add: less speed, more scarcity and power. MLB.com lists his 2026 line at 124 AB, 16 R, 34 H, 5 HR, 16 RBI, and an .806 OPS, with a .348 average over his last seven games. Fantasy Alarm had Basallo at 31% rostered on Yahoo on May 10 and noted a month-long production run of .311 with four homers, 14 RBI, and a .930 OPS at that point. At catcher, that can matter even if the player is not sitting on your waiver wire in every league.

A.J. Ewing (Mets CF) is the pure call-up upside name. MLB.com lists his May 12 selection from Syracuse and a tiny but loud early line: 12 AB, 4 R, 3 H, 1 HR, 3 RBI, 1 SB, a .438 OBP, and a 1.105 OPS. The same MLB.com bio notes a 2025 minor-league season with a .315 average, 10 triples, and 70 steals across three levels, while Sports Illustrated Fantasy wrote that his fantasy ownership had climbed to 11% after the debut burst. The caution is obvious: this is still a very small MLB sample.

Sam Antonacci (Chicago White Sox LF/IF profile) and Ryan Waldschmidt (Arizona CF) are the deeper-league versions of the same idea. MLB.com lists Antonacci at 84 AB, .274, 1 HR, 9 RBI, 3 SB, and a .797 OPS after an April 15 call-up, and Fantasy Alarm had him at 11% rostered on Yahoo on May 10 while noting multi-position usefulness. MLB.com lists Waldschmidt as selected on May 8 and at 24 AB, .250, 0 HR, 5 RBI, 1 SB, and a .641 OPS; the appeal comes more from the 2025 minor-league track record MLB.com lists: .289 with an .892 OPS, 18 HR, 78 RBI, 96 walks, and 25-game on-base streaks.

How to scout your next pickup (without needing perfect data)

The point is not to add every name above. It is to use the same filter quickly before the roster rate catches up: last 7–14 days of starts, lineup slot consistency, platoon usage, role durability, and category shape. Bazzana and Ewing are speed/on-base bets; Basallo is a catcher-power bet; Antonacci is a multi-position OBP/speed watch; Waldschmidt is a deeper power-speed patience play.

Then validate the skills with what your platform shows: BB and K in the small sample (even more than batting average), and whether recent production is coming with regular plate appearances rather than pinch-hit noise. Finally, set a decision window: for fresh call-ups, commit to a short evaluation horizon (e.g., a week of everyday run or ~30–40 PA) unless the role is clearly locked in. That keeps you aggressive on adds without getting trapped holding a bench bat once the roster returns to full health.